LITTLE ROCK — Duck hunters aren’t the only people who know and appreciate the soul-stirring sight of thousands of ducks, geese and other migratory birds descending on open fields in the Arkansas Delta. Each year, birders and other wildlife-watching enthusiasts flock to wetlands during winter to catch a glimpse of these birds as they make their annual trip between nesting grounds in the North and warmer breeding grounds below the frost belt. And thanks to the habitat offered by waterfowl-focused programs in Arkansas, these birdwatchers have more than 3,800-acres of private land to enjoy their passion through the end of winter.